Home / 1,889.90-2,606.91-1,329.38

Finding the Fourth Proportional to 1,889.90, 2,606.91 and 1,329.38

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Solution

The fourth proportional to 1,889.90, 2,606.91 and 1,329.38 is: 1,833.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889.90 : 2,606.91 = 1,329.38 : x
  2. Step 2: Convert to fraction form
    1,889.90/2,606.91 = 1,329.38/x
  3. Step 3: Cross multiply
    1,889.90x = 2,606.91 × 1,329.38
  4. Step 4: Simplify right side
    1,889.90x = 3,465,574.02
  5. Step 5: Solve for x
    x = 3,465,574.02/1,889.90
  6. Step 6: Final answer
    x = 1,833.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.